Ox shoes



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4 Sheets-8heet 1 W. PEARCE.

DIBFOR PORGING 0X SHOES. No. 314,193.

Pzitented Mar. 17,1885.

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W. PEARCE.

DIE. FOR FORGING OX SHOES.

No. 314,193. Patented Mar. 17, 1885.

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DIE FOR FORGING 0X SHOES.-

Patented Mar. 17, 1885.

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W. PEARCE.

DIE FOR FORGING 0X SHOES.

No. 314.193. Patented Mar. 17, 1885.

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NITED STATES PATENT. OFFICE.

WILLIAM PEARCE, on PLANTSVILLE, ASSIGNOR TO HIMSELF, AND M. N.

WOODRUFF AND N. A. BARNES,

BOTH OF SOUTHINGTON, CONN.

DIE FOR FORGING OX-SHOES.

:SPECIPICATION iorrning part of Letterslatent No. 314,193, dated March 17, 1885.

Application filed September 2, 1884. (No model.)

To aZZ whom it may concern:

Be it known that 1, WM. PEARCE, of Plantsville, in the county of Hartford, and in the State of Oonnecticut,have invented certain new and useful Improvements in the Manufacture of Ox-Shoes; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which-- Figure 1 is a perspective view of the upper and lower dies used by me in the forging of oX-shoes having parallel calks. Fig. 2 is a like view of the same as arranged for forging the ordinary form of shoe. Fig. 3 is a perspective View of a blank and a completed shoe as left by the dies shown in Fig. 1. Fig. 4 is a like view of the same as left by the dies shown in Fig. 2. Fig. 5 is a section of the dies through the longitudinal axis of one of the recesses, said dies being closed together upon a bar of iron; and Figs. 6 and 7 are respectively perspective views of the trimmingdies shown-in connection with the dies shown in Figs. 1 and 2.

Letters of like name and kind refer to like parts in each of the figures.

The object of my invention is to enable 0X- shoes to be quickly and easily produced from a straight bar by means of dies, to which end saidinvention consists, principally, in the construction of the dies whereby a number of shoes may be forged from a straight bar at one heat, substantially as and for the purposehereinafter shown.

It consists, further, in the series of dies used for forging a shoe, substantially as and for the purpose hereinafter set forth.

It consists, finally, in combining with forging-dies, constructed substantially as shown, trimming-dies which are adapted to receive the sprue-connected blanks and to trim from each the surplus metal, substantially as and for the purpose hereinafter described.

In the carrying into effect of my invention- I employ two forging-dies, A and B, which, for convenience, are formed within one block of metal and are arranged side by side, but may, if desired, be formed separately. The first of said dies, A, has the general size and shape of the desired shoe 0, and is provided with a small half-round rib, a, that partly forms the nail-groove c of said shoe, while said die B has the exact size-and shape of the finished shoe, and is provided with a rib, b, that has a A shape in cross-section, and is adapted to complete said nail-groove c.

' In practice a straight bar of iron is heated and placed over the die A in substantially a line with the transverse centers of the calk-recesses a and a in which position said bar is subjected to the action of an upper plain-faced die, D, and caused to fill the cavities of said die A. The partially-forged shoe 0 is now placed over the second die, B, and by means of one or more blows from said upper die is forced into the former and given the exact shape required. As the metal under the action of the upper die must flow outward and downward in the preliminary die A, so as to fill the recess at such point and form the outer thickest portion of the shoe 0, it is necessary that the rib a should be low and transversely rounded, so as not to be an obstruction to the movement of the heated metal or to cause at such point a cold sheet.

In order that the shoes may be forged directly from a bar without first cutting the same into lengths, the upper die, I), has but slightlygreater length than is necessary to enable it to cover the recesses in the dies A and B, and in use its ends out into said bar and nearly sever the metal, leaving at each end of the shoe C a sprue, c, that serves to connect said shoe with the previously-forged shoe in front and with said bar at its rear, and enables a number to be forged at one heat from said bar without separatiom While the corners of said die D are preferably left square, they may, if desired, be rounded or formed at any angle.

After the shoes C have passed through the finishing-die B, each is placed over a female trimming-die, E, that corresponds to the outline of the completed shoe, and is then operated upon by an upper male die, F, which forces said shoe through said openipg and removes all surplus metal from its edges. This trimming operation is performed without reheating the metal.

The process described is not claimed herein,

as it forms the Subject of a separate application for patent.

Having thus fully set forth the nature and merits of my invention, what I claim is with a plain-faced upper die, substantially as r 5 and for the purpose set forth.

3. The series of dies A, B, D, E, and F, constructed as described, and adapted for use in forging and trimming an ox-shoe, substantially as shown.

In testimony that I claim the foregoing I have hereunto set my hand this 26th day of August, 1884.

\VILLIAM PEARCE.

Witnesses:

THEODORE H. MCKE ZIE, MARCUS H. HoLooMB. 

